List of top Questions asked in TS PGECET

A reaction in which one of the products of the reaction acts as a catalyst is called:

The unit of frequency factor in Arrhenius equation is:

For Arrhenius model of the rate constant \( k = k_0 \cdot e^{-E/RT} \), the graph drawn between \( \ln(k) \) versus \( \frac{1}{T} \) gives the slope of:

For a highly exothermic, solid-catalysed reaction, what reactor configuration should be used to achieve high conversion?

The catalyst in a second order reversible reaction increases the rate of the:

The molecular diffusivity of a liquid:

A space time of 3 hours for a flow reactor means that:

For all positive reaction orders and for a given reactor duty:

Which one of the following fixes the volume of batch reactor for a particular conversion and production rate?

The reason for referring packed towers over plate towers in distillation practice is that the packed tower operation gives:

In binary distillation, the number of bubble cap per tray primarily depends on:

In distillation column design, the McCabe-Thiele procedure is inadequate and Ponchon-Savarit procedure is needed when:

In an inter-phase mass transfer process, the lesser the solubility of a given solute in a liquid, the higher are the chances that the transfer process will be:

In an absorber the equilibrium curve is always:

The individual mass transfer coefficients (\(\text{mol}/\text{m}^2\cdot\text{s}\)) for absorption of a solute from a gas mixture into a liquid solvent are \( k_L = 4.5 \) and \( k_G = 1.5 \). The slope of the equilibrium line is 3. Which one of the following resistance(s) is/are controlling?

A batch of material is dried under constant drying conditions. When drying is taking place from all the surfaces, the rate of drying during the constant rate period is:

Which one of the following tray gives greatest flexibility in distillation column?

The dew point of an unsaturated mixture of water vapour and air at constant temperature and pressure:

An azeotropic mixture of two liquids has boiling point higher than either of them when it:

If there is condensation of carrier steam in the steam distillation of high-boiling organic materials, then:

Prandtl number in heat transfer is analogous to the following dimensionless number in mass transfer:

Unsaturated air (with dry bulb temperature and dew point being \( 35^\circ\text{C} \) and \( 18^\circ\text{C} \) respectively) is passed through a water spray chamber maintained at \( 15^\circ\text{C} \). The air will be:

Which one of the following forms minimum boiling azeotrope at one atmosphere?

For laminar film condensation on vertical surface, the film thickness:

If the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid: